Tengshi blue and Prussian blue

Quick answer：

Tengshi blue and Prussian blue are both types of blue pigments. Tengshi blue, also known as indigo, is a natural organic pigment derived from the fermentation of indigo leaves. Prussian blue, on the other hand, is an inorganic pigment made from ferric ferrocyanide. Both are widely used in art, dyeing, and various industrial applications.